The first constructed barrage of Pakistan: Sukkur barrage
Bhasha dam on which river: Indus River
Which theory is used for bridge making: ?
HinduKush mountain range connect Pakistan with Afghanistan
Which Ocean is deepest then others: Pacific Ocean
Comparing human eye with camera which is common in both: ?
Why sky looks blue: (A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.)